English / USA
Adjusting the Carburetor
General Information
Standard Setting
Adjusting Idle Speed
The carburetor comes from the factory
with a standard setting.
L
H L
This setting provides an optimum
fuel-air mixture under most operating
conditions.
With this carburetor it is only possible to
correct the adjustment of the high speed
screw within fine limits.
LA
If the setting is too lean, there is a
risk of engine damage due to
insufficient lubrication and
overheating.
:
:
Shut off the engine.
Engine stops while idling
Turn the high speed screw (H) and
low speed screw (L) counter-
clockwise as far as stop (max. 1/4
turn).
:
Carry out standard setting on the
low speed screw.
:
Turn idle speed screw (LA)
clockwise until the engine runs
smoothly.
Erratic idling behavior, poor
acceleration
:
Carry out standard setting on the
low speed screw.
:
Turn low speed screw (L)
counterclockwise until the engine
runs and accelerates smoothly.
It is usually necessary to change the
setting of the idle speed screw (LA)
after every correction to the low speed
screw (L).
20
BR 340, BR 380
| Categories | Blower Vacuum and Sweeper Manuals, STIHL Blower and Vacuum Manuals |
|---|---|
| Tags | STIHL BR 340, STIHL BR 380 |
| Download File |
|
| Language | English, Español |
| Product Brand | STIHL. Stihl Inc, USA - Corporate phone: (757) 486-9100. International Support Information: http://stihl.com Email: info@stihl.com, Blower Vacuum |
| Document File Type | |
| Publisher | stihl.com |
| Wikipedia's Page | Stihl |
| Copyright | Attribution Non-commercial |
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